Packing vessel.



PACKING VESSEL..

(no udel) (Application lld Dee. 30, 1899.)

ETE STATES WILLIAM C. RUDD, OF CLEVELAND, OHIO.

PACKING VESSEL.

SPECIFICATION forming part of Letters Patent No. 668,691, dated February26, 1901- Application tiled December 30, 1899. Serial No. 742,040. (Nomodel.)

To a/ZZ whom it may concern.-

Be it known that I, WILLIAM (J. RUDD, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented a certain new and useful Improvement in Packing Vessels, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings.

The object of the invention is to provide a cheap and simpleconstruction for sealing a packing vessel; and the invention consists inthe construction and combination of parts shown in the drawings andhereinafter described and claimed.

In the drawings, Figure lis a side elevation, partly in verticalsection, of a construction embodying my invention; and Fig. 2 is aperspective View of one of the spring-clam ps for fastening the cover onthe vessel.

Referring to the parts by letters, A represents the vessel, which may beof any desired form and material, but is preferably made of glass. Brepresents its cover, which is also preferably made of glass, and D Drepresent the spring-clamps for holding the cover upon the vessel. Thevessel is provided near its upper edge with an annular external fianged, the lower` edge d' of which may be approximately horizontal. Thecover B rests upon a rubber gasket C, which in turn rests upon the topof the flange. On the top of this cover and at the edge thereof is araised bead b, which is beveled from its top both inwardly andoutwardly. Preferably this elfect is produced by making this bead ofsubstantially semicircular form in vertical section, as shown. On thecover and a short distance within this bead is the raised annularinclined shoulder b', the purpose of which will be presently described.

The spring-clamps D are preferably made of thin flat spring metal. Eachhas its lower end bent inward to form the arm d', which may besubstantially horizontal.- Its upper end is also bent inward to form thearm d. This arm is substantially of ogee form-that is to say, it has theinwardly and downwardly bent part d2 and the inwardly and upwardly bentpart d3, substantially as shown. To apply these clamps after the coverhas been placed upon the vessel, the end of the arm d is placed underthe lower edge of the iiange a on the vessel and the upper end of saidclamp is pushed inward, turning upon this end ofthe arm d as a fulcrumuntil, shown at the right of Fig. l, the part cl3 of the upper arm CZstrikes the beveled outer face of the bead b. When the clamp is pushedfurther inward, this arm d is bent upward, because of the inclination ofthe engaging surface, until it passes over the top of the bead. Then theresilience of the spring metal draws this arm d downward, the part d2thereof moving in contact with the inclined inner face of the bead b,which causes the upper end of the clamp to be drawn inward until theupturned end (Z3 of the arm d engages with the shoulder b', the arm dbeing made of proper length to permitthisengagement. Theclamps havingreached the position described, which is shown at the left in Fig. l,now act to hold the cover upon the jar. The engagement of the upturnedyend d3 of the clamp with the shoulder b' acts to resist any forcetending to cause the disengagement of the lower arm d' from the ange a,because if a force be applied to the lower end of the clamp to swing itoutward the clamp must either be bent (which cannot be done easily andwill never be done accidentally) or else the clamp must swing as a leverupon a fulcrum formed by the engagement of the part cl2 of the arm dwith the inner inclined face of the bead b, and such movement of theclamp as a lever is resisted by the aforesaid engagement of the end d3of this lever with said shoulder b'. The provision of these shoulders b'and the making of the upper 'arm d of the shape and length to engagewith them makes it unuecessary to undercut the flange ot or to make thelower arm of the clamp hook-shaped. It

is not pretended that the described construction will prevent thedisengagement of the lower end ofthe clamp and the flange; but it willprevent such disengagement accidentally, and that is the object aimedat, and this result is produced by a cheap and simple construction. y

While .the vessel will present a more attractive appearance if theflange a and the bead b and shoulder by extend around the vessel andcover, respectively, it is only necessary to provide these flanges,beads, and

IOO

shoulders at the points where the clamps are to be applied.

Having described my invention, I claiml. The combination of a Vesselhaving the external liange a near its upper edge, and the cover having0n its top and at the edge thereof the rounded bead b which is inclinedfrom its top in both directions, and the inclined raised shoulder ZJ',with spring-clamps each having an inwardly-bent arm d' on its lower end,and the inwardly-bent ogee-shaped arm on its upper end, substantially asdescribed.

2. The combination of a vessel having an annular ange near its brim, acover having an annular rounded bead above said flange, a roundeddepression and a conical face with- `WILLIAM C. RUDD.

Witnesses:

E. L. THURsToN, P. E. KNOWLToN.

